| 摘要 |
An inertia motor (30) for a toy (10) has a housing (32) supporting a rotating flywheel (50). The flywheel has a disk (52) with generally radially movable elements (58), movement of which vary the moment of inertia of the disk. Another element (40) is supported by the housing so as to be movable towards and away from the disk and is located so as to be able to engage at least one of the movable elements when the flywheel has slowed sufficiently. Angular momentum in the flywheel at engagement is transferred to the housing (32). The housing may also include a transmission such as a gear train (36, 38, 54) to connect the flywheel with one of more elements of the toy to be powered by the flywheel. |
